/*
 * nd.h : a small program for WebDAV operations.
 */

#ifndef _ND_H
#define _ND_H

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <libxml/tree.h>

#define ND_PRINT_AS_HEADER 301
#define ND_PRINT_AS_SEXP   302

#define ND_LOCK_SCOPE_EXCLUSIVE 101
#define ND_LOCK_SCOPE_SHARED    102
#define ND_LOCK_REQUEST_MAX    1024

/* DEPTH */
#define ND_DEPTH_0        0
#define ND_DEPTH_1        1
#define ND_DEPTH_INFINITE 2

/* HTTP/WebDAV Reason-Phrase of HTTP status line. */
#define ND_CODE_OTHER "System Error"
#define ND_CODE_100 "Continue"
#define ND_CODE_101 "Switching Protocols"
#define ND_CODE_102 "Processing" /* DAV */
#define ND_CODE_200 "OK"
#define ND_CODE_201 "Created"
#define ND_CODE_202 "Accepted"
#define ND_CODE_203 "Non-Authoritative Information"
#define ND_CODE_204 "No Content"
#define ND_CODE_205 "Reset Content"
#define ND_CODE_206 "Partial Content"
#define ND_CODE_207 "Multi-Status" /* DAV */
#define ND_CODE_300 "Multiple Choices"
#define ND_CODE_301 "Moved Permanently"
#define ND_CODE_302 "Found"
#define ND_CODE_303 "See Other"
#define ND_CODE_304 "Not Modified"
#define ND_CODE_305 "Use Proxy"
#define ND_CODE_307 "Temporary Redirect"
#define ND_CODE_400 "Bad Request"
#define ND_CODE_401 "Unauthorized"
#define ND_CODE_402 "Payment Required"
#define ND_CODE_403 "Forbidden"
#define ND_CODE_404 "Not Found"
#define ND_CODE_405 "Method Not Allowed"
#define ND_CODE_406 "Not Acceptable"
#define ND_CODE_407 "Proxy Authentication Required"
#define ND_CODE_408 "Request Time-out"
#define ND_CODE_409 "Conflict"
#define ND_CODE_410 "Gone"
#define ND_CODE_411 "Length Required"
#define ND_CODE_412 "Precondition Failed"
#define ND_CODE_413 "Request Entity Too Large"
#define ND_CODE_414 "Request-URI Too Large"
#define ND_CODE_415 "Unsupported Media Type"
#define ND_CODE_416 "Requested range not satisfiable"
#define ND_CODE_417 "Expectation Failed"
#define ND_CODE_422 "Unprocessable Entity" /* DAV */
#define ND_CODE_423 "Locked" /* DAV */
#define ND_CODE_424 "Failed Dependency" /* DAV */
#define ND_CODE_500 "Internal Server Error"
#define ND_CODE_501 "Not Implemented"
#define ND_CODE_502 "Bad Gateway"
#define ND_CODE_503 "Service Unavailable"
#define ND_CODE_504 "Gateway Time-out"
#define ND_CODE_505 "HTTP Version not supported"
#define ND_CODE_507 "Insufficient Storage" /* DAV */

#define ND_HEADER_LINE_MAX 1024
#define ND_REQUEST_MAX     2048

/*
 * ndLockInfo :
 * Lock structure for LOCK, UNLOCK.
 */
typedef struct _nd_lock_info
{
  struct _nd_lock_info *next;
  char *scope;
  char *type;
  char *owner_href;
  char *token;
  char *depth;
  char *timeout;
} ndLockInfo, *ndLockInfoPtr;

/*
 * ndProp :
 * Property structure
 */
typedef struct _nd_prop
{
  struct _nd_prop *next;
  char *ns;
  char *name;
  char *value;
} ndProp, *ndPropPtr;

/*
 * ndNodeInfo :
 * Node info structure
 */
typedef struct _nd_node_info
{
  struct _nd_node_info *next;
  char *name;
  char *size;
  char *date;
  char *cdate;
  char *content;
  char *restype;
  int status;
  ndPropPtr props;
  ndLockInfoPtr lock;
} ndNodeInfo, *ndNodeInfoPtr;

extern ndNodeInfoPtr ndNodeInfoNew (void);
extern void ndNodeInfoFree (ndNodeInfoPtr info);
extern void ndNodeInfoListFree (ndNodeInfoPtr info);
extern void ndNodeInfoPrint (FILE *fp, ndNodeInfoPtr info, int format);
extern void ndNodeInfoListPrint (FILE *fp, ndNodeInfoPtr info, int format);

extern char *ndReasonPhrase (int code);

extern ndLockInfoPtr ndLockInfoNew (void);
extern void ndLockInfoFree (ndLockInfoPtr lock);
extern void ndLockInfoListFree (ndLockInfoPtr lock);
extern void ndLockInfoPrint (FILE *fp, ndLockInfoPtr lock, int format);
extern void ndLockInfoListPrint (FILE *fp, ndLockInfoPtr lock, int format);

extern ndPropPtr ndPropNew (void);
extern void ndPropFree (ndPropPtr prop);
extern void ndPropListFree (ndPropPtr prop);
extern void ndPropPrint (FILE *fp, ndPropPtr prop, int format);
extern void ndPropListPrint (FILE *fp, ndPropPtr prop, int format);

typedef struct _nd_auth_param
{
  char *name;
  char *val;
} ndAuthParam, *ndAuthParamPtr;

/* Authentication API */

/*
 * A callback to obtain an authenticate result.
 */
typedef void (*ndAuthResultCallback) (int resultCode);

/*
 * A callback to set up Authentication Parameters.
 */
typedef int (*ndAuthCallback) (ndAuthParamPtr param, int is_proxy);

/*
 * A callback to notify Authentication end.
 */
typedef void (*ndAuthNotifyCallback) (void *ctxt);

typedef struct _nd_auth_ctxt
{
  ndAuthCallback auth_cb;
  ndAuthNotifyCallback notify_cb;
  char *auth_realm;  /* Authentication Realm */
  char *pauth_realm; /* Proxy Authentication Realm */
} ndAuthCtxt, *ndAuthCtxtPtr;

extern ndAuthCtxtPtr ndCreateAuthCtxt (ndAuthCallback auth_cb, 
				       ndAuthNotifyCallback notify_cb,
				       char *auth_realm,
				       char *pauth_realm);
extern void ndFreeAuthCtxt (ndAuthCtxtPtr auth);

/* Auth param accessors. */
extern char *ndAuthParamValue (ndAuthParamPtr param, char *name);
extern int  ndAuthParamSetValue (ndAuthParamPtr param, char *name, char *val);

/*
 * Allocated Header String Buffer is set to buf_return,
 */
extern int ndAuthCreateHeader (char *str,
			       ndAuthCallback fn,
			       xmlBufferPtr *buf_return,
			       int is_proxy);

/* DAV API */
extern int ndPropFind (char *url,
		       ndAuthCtxtPtr auth,
		       char *prop,
		       char *ns,
		       int depth,
		       ndNodeInfoPtr *ni_return);

extern int ndPropPatch (char *url,
			ndAuthCtxtPtr auth,
			char *prop,
			char *value,
			char *ns,
			char *lock_token,
			ndNodeInfoPtr *ni_return);

extern int ndLock (char *url,
		   ndAuthCtxtPtr auth,
		   int depth,
		   char *owner,
		   int scope,
		   char *timeout,
		   ndLockInfoPtr *li_return);

extern int ndUnlock (char *url,
		     ndAuthCtxtPtr auth,
		     int depth,
		     char *lock_token);

extern int ndMkCol (char *url,
		    ndAuthCtxtPtr auth,
		    char *lock_token);

extern int ndPut (char *url,
		  ndAuthCtxtPtr auth,
		  char *content,
		  int length,
		  char *lock_token,
		  ndNodeInfoPtr *ni_return);

extern int ndPost (char *url,
		   ndAuthCtxtPtr auth,
		   char *content,
		   int length,
		   char **content_type,
		   xmlBufferPtr *buf_return);

extern int ndPostPrint (char *url,
			ndAuthCtxtPtr auth,
			char *content,
			int length,
			char **content_type,
			FILE *outfp);

extern int ndGet (char *url,
		  ndAuthCtxtPtr auth,
		  char **ct_return,
		  xmlBufferPtr *buf_return);

extern int ndGetPrint (char *url,
		       ndAuthCtxtPtr auth,
		       char **ct_return,
		       FILE *outfp);

extern int ndDelete (char *url,
		     ndAuthCtxtPtr auth,
		     char *lock_token);

extern int ndMove (char *url,
		   ndAuthCtxtPtr auth,
		   char *dest_url,
		   int overwrite,
		   char *lock_token);

extern int ndCopy (char *url,
		   ndAuthCtxtPtr auth,
		   char *dest_url,
		   int overwrite,
		   char *lock_token);

#endif /* _ND_H */